The target water outlet flow transducers on the T1 and T2 cooling packages were serviced (new shaft, paddle wheel, & o-ring) to address a noisy signal. The service corrected the noisy signal. Additionally, it appears the worn parts were causing the transducers to read high, as both dropped approximately 1 gallon/minute after the service. Both transducers would occasionally trip the high flow warning (8.5gpm), and should now no longer do so.
A plot of the water outlet flows before and after the service is attached. Cyclotron fault report #6086 was returned. |